<template>
  <el-container class="home-container">
    <el-header>
      <div>
        <!-- <img src="../assets/a.jpg" alt=""> -->
        <img src="../assets/0.jpg" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <el-container>
      <el-aside :width="isCollapse ? '64px' : '200px'">
       <div class="toggle-button" @click="toggleCollapse">|||</div>
        <!-- 侧边栏菜单区域-->
         <el-menu :default-active="activePath" router unique-opened :collapse="isCollapse" :collapse-transition="false"
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409EFF">
      <!-- 一级菜单-->
      <el-submenu :index="item.id+''" v-for="item in menuList" :key='item.id'>
       <!-- 一级菜单的模板-->
        <template slot="title">
         <!-- 一级菜单图标-->
          <i :class="iconObj[item.id]"></i>
           <!-- 一级菜单文本-->
          <span>{{item.authName}}</span>
        </template>
         <!-- 二级菜单-->
        <el-menu-item @click="saveNavState('/'+subItem.path)" :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id">
        <template slot="title">
         <!-- 二级菜单图标-->
          <i class="el-icon-menu"></i>
           <!-- 二级菜单文本-->
          <span>{{subItem.authName}}</span>
        </template>
        </el-menu-item>
      </el-submenu>
    </el-menu>
      </el-aside>
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
  data () {
    return {
      menuList: [],
      iconObj: {
        125: 'iconfont icon-yonghu',
        103: 'iconfont icon-login_username',
        101: 'iconfont icon-quanxian',
        102: 'iconfont icon-shangpinchuangjian',
        145: 'iconfont icon-yonghu'
      },
      isCollapse: false,
      // 被激活的连接地址
      activePath: ''
    }
  },
  // 生命周期函数
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meat.msg)
      this.menuList = res.data
      console.log(res)
    },
    // 点击按钮切换菜单的折叠和展开
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>
<style lang="less" scoped>
.home-container {
    height: 100%;
}
.el-header {
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0px;
    align-items: center;
    color: #ffffff;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      > img {
        width: 50px;
        height: 50px;
        border-radius: 50px;
        margin: 0px 20px 0px 20px;
      }
    }
}
.el-aside {
    background-color: #333744;
    .el-main {
      border-right: none;
    }
}
.el-main {
    background-color: #EAEDF1;
}
.iconfont {
  margin: 10px;
}
.toggle-button {
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color: #ffffff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
